package com.piece.core.framework.util.net;

import com.piece.core.framework.enums.Browser;
import com.piece.core.framework.enums.HeaderType;
import com.piece.core.framework.enums.LocalType;
import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 浏览器相关工具类
 */
public class BrowserUtil {

    private final static String IE11 = "rv:11.0";
    private final static String IE10 = "MSIE 10.0";
    private final static String IE9 = "MSIE 9.0";
    private final static String IE8 = "MSIE 8.0";
    private final static String IE7 = "MSIE 7.0";
    private final static String IE6 = "MSIE 6.0";
    private final static String QQ = "QQBrowser";
    private final static String SE360 = "360SE";
    private final static String FIREFOX = "Firefox";
    private final static String OPERA = "Opera";
    private final static String CHROME = "Chrome";
    private final static String SAFARI = "Safari";
    private final static String HarmonyOS = "HarmonyOS";
    private final static String Gecko = "Gecko";
    private final static String Camino = "Camino";
    private final static String GREEN = "GreenBrowser";
    private final static String MAXTHON = "Maxthon";
    private final static String OTHER = "其它";

    // 判断是否是IE
    public static boolean isIE(HttpServletRequest request) {
        return request.getHeader(HeaderType.USER_AGENT.getValue()).toLowerCase().indexOf("msie") > 0 || request
                .getHeader(HeaderType.USER_AGENT.getValue()).toLowerCase().indexOf("rv:11.0") > 0;
    }

    /**
     * 获取IE版本
     */
    public static Double getIEVersion(HttpServletRequest request) {
        Double version = 0.0;
        if (getBrowserType(request, IE11)) {
            version = 11.0;
        } else if (getBrowserType(request, IE10)) {
            version = 10.0;
        } else if (getBrowserType(request, IE9)) {
            version = 9.0;
        } else if (getBrowserType(request, IE8)) {
            version = 8.0;
        } else if (getBrowserType(request, IE7)) {
            version = 7.0;
        } else if (getBrowserType(request, IE6)) {
            version = 6.0;
        }
        return version;
    }

    /**
     * 获取浏览器类型
     */
    public static Browser getBrowserType(HttpServletRequest request) {
        Browser browserType = null;
        if (getBrowserType(request, IE11)) {
            browserType = Browser.IE11;
        }
        if (getBrowserType(request, IE10)) {
            browserType = Browser.IE10;
        }
        if (getBrowserType(request, IE9)) {
            browserType = Browser.IE9;
        }
        if (getBrowserType(request, IE8)) {
            browserType = Browser.IE8;
        }
        if (getBrowserType(request, IE7)) {
            browserType = Browser.IE7;
        }
        if (getBrowserType(request, IE6)) {
            browserType = Browser.IE6;
        }
        if (getBrowserType(request, FIREFOX)) {
            browserType = Browser.Firefox;
        }
        if (getBrowserType(request, SAFARI)) {
            browserType = Browser.Safari;
        }
        if (getBrowserType(request, CHROME)) {
            browserType = Browser.Chrome;
        }
        if (getBrowserType(request, OPERA)) {
            browserType = Browser.Opera;
        }
        if (getBrowserType(request, Camino)) {
            browserType = Browser.Camino;
        }
        if (getBrowserType(request, Gecko)) {
            browserType = Browser.Gecko;
        }
        if (getBrowserType(request, HarmonyOS)) {
            browserType = Browser.HarmonyOS;
        }
        return browserType;
    }

    private static boolean getBrowserType(HttpServletRequest request, String browserType) {
        return request.getHeader(HeaderType.USER_AGENT.getValue()).toLowerCase()
                .indexOf(browserType) > 0;
    }

    public static String checkBrowse(HttpServletRequest request) {
        String userAgent = request.getHeader("USER-AGENT");
        if (regex(HarmonyOS, userAgent)) {
            return HarmonyOS;
        }
        if (regex(OPERA, userAgent)) {
            return OPERA;
        }
        if (regex(CHROME, userAgent)) {
            return CHROME;
        }
        if (regex(FIREFOX, userAgent)) {
            return FIREFOX;
        }
        if (regex(SAFARI, userAgent)) {
            return SAFARI;
        }
        if (regex(SE360, userAgent)) {
            return SE360;
        }
        if (regex(GREEN, userAgent)) {
            return GREEN;
        }
        if (regex(QQ, userAgent)) {
            return QQ;
        }
        if (regex(MAXTHON, userAgent)) {
            return MAXTHON;
        }
        if (regex(IE11, userAgent)) {
            return IE11;
        }
        if (regex(IE10, userAgent)) {
            return IE10;
        }
        if (regex(IE9, userAgent)) {
            return IE9;
        }
        if (regex(IE8, userAgent)) {
            return IE8;
        }
        if (regex(IE7, userAgent)) {
            return IE7;
        }
        if (regex(IE6, userAgent)) {
            return IE6;
        }
        return OTHER;
    }

    public static boolean regex(String regex, String str) {
        Pattern p = Pattern.compile(regex, Pattern.MULTILINE);
        Matcher m = p.matcher(str);
        return m.find();
    }

    private static final Map<String, String> langMap = new HashMap<>();
    private final static String ZH = "zh";
    private final static String EN = "en";

    static {
        langMap.put(ZH, LocalType.CN.getType());
        langMap.put(EN, LocalType.EN.getType());
    }

    public static String getBrowserLanguage(HttpServletRequest request) {
        String browserLang = request.getLocale().getLanguage();
        String browserLangCode = langMap.get(browserLang);

        if (browserLangCode == null) {
            browserLangCode = LocalType.EN.getType();
        }
        return browserLangCode;
    }
}
